Base | Representation |
---|---|
bin | 11101001000101100101… |
… | …01110101010101101101 |
3 | 10112201000112102002200112 |
4 | 32210112111311111231 |
5 | 112400224130432341 |
6 | 2043522222305405 |
7 | 132220150213412 |
oct | 16442625652555 |
9 | 3481015362615 |
10 | 1001102202221 |
11 | 356624104820 |
12 | 14202b128265 |
13 | 7353273a9c4 |
14 | 3664c99a109 |
15 | 1b0933d4aeb |
hex | e91657556d |
1001102202221 has 8 divisors (see below), whose sum is σ = 1094257101600. Its totient is φ = 908304904240.
The previous prime is 1001102202179. The next prime is 1001102202277. The reversal of 1001102202221 is 1222022011001.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1001102202221 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1001102202196 and 1001102202205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1001102208221) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89394491 + ... + 89405688.
It is an arithmetic number, because the mean of its divisors is an integer number (136782137700).
Almost surely, 21001102202221 is an apocalyptic number.
1001102202221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
1001102202221 is a deficient number, since it is larger than the sum of its proper divisors (93154899379).
1001102202221 is a wasteful number, since it uses less digits than its factorization.
1001102202221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 178800699.
The product of its (nonzero) digits is 32, while the sum is 14.
Adding to 1001102202221 its reverse (1222022011001), we get a palindrome (2223124213222).
The spelling of 1001102202221 in words is "one trillion, one billion, one hundred two million, two hundred two thousand, two hundred twenty-one".
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